[Arubalisa]

This is a scholar/technical paper http://www.meteo.an/include/Pub/documents/curacao.pdf

"...during the rain season most precipitation is late at night and in the early morning, opposite to the usual tropical pattern..."
Just so folks know I don't pull this info out of a hat.

The paper breaks the rainy seasons down as:
February to May is dry season.
June to September is the "small rains" season.
October to January is the rain season.

A lot of rain showers occur over night and early morning. During the day you may have a passsing shower, it may be "showering" down the beach and sunny on the part of the beach where you are standing.

I posted this in response in another thread, but thought this was good info for this thread.

Aruba is a semi-arrid island which receives 21 inches of rain per year.